<div dir="ltr"><br><div class="gmail_quote">On Wed, Oct 1, 2008 at 11:40 AM, Jim Stichnoth <span dir="ltr"><<a href="mailto:stichnot@gmail.com">stichnot@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div dir="ltr">I took a couple of screen shots to show the problem more clearly. I paused the
input source (an SD DirecTiVo), then ran either "v4l2-ctl -b cc" or
"v4l2-ctl -b off" to turn closed captioning on or off, and then
captured a frame using xine. If you flip back and forth between the
two images, it's clear that the first several lines are being cropped
and everything shifted up when cc is enabled. It's also interesting
that even with the uncropped picture, the VBI stuff has apparently
already been removed. If I had to guess, I would say that VBI removal
is being done twice when cc is on. (I would prefer that VBI were not
removed at all, so that MythTV overscan or whatever could be applied
consistently to all inputs.)<br><br>cc on: <a href="http://www.flickr.com/photos/37377999@N00/2905480460/sizes/o/" target="_blank">http://www.flickr.com/photos/37377999@N00/2905480460/sizes/o/</a><br>cc off: <a href="http://www.flickr.com/photos/37377999@N00/2905480878/sizes/o/" target="_blank">http://www.flickr.com/photos/37377999@N00/2905480878/sizes/o/</a><br>
<br></div></blockquote></div><br>I have an identical problem with recordings made on my PVR-150 through the composite inputs. Mine matches the 'CC On' image. I'd basically given up on this problem until I saw your message! For what it's worth, here's the IVTV output for my PVR-150 card:<br>
<pre style="font-family: arial,helvetica,sans-serif; margin-left: 40px;"><font size="2">[root@mythtv root]# /usr/local/bin/v4l2-ctl --log-status --device=/dev/video_pvr150<br><br>Status Log:<br><br> ivtv0: ================= START STATUS CARD #0 =================<br>
ivtv0: Version: 1.3.0 Card: Hauppauge WinTV PVR-150<br> tveeprom 1-0050: Hauppauge model 26552, rev F0A3, serial# 10381107<br> tveeprom 1-0050: tuner model is TCL MFNM05-4 (idx 103, type 43)<br> tveeprom 1-0050: TV standards NTSC(M) (eeprom 0x08)<br>
tveeprom 1-0050: audio processor is CX25843 (idx 37)<br> tveeprom 1-0050: decoder processor is CX25843 (idx 30)<br> tveeprom 1-0050: has radio, has no IR receiver, has no IR transmitter<br> cx25840 1-0044: Video signal: present<br>
cx25840 1-0044: Detected format: NTSC-M<br> cx25840 1-0044: Specified standard: NTSC-M<br> cx25840 1-0044: Specified video input: Composite 3<br> cx25840 1-0044: Specified audioclock freq: 48000 Hz<br>
cx25840 1-0044: Detected audio mode: forced mode<br> cx25840 1-0044: Detected audio standard: no detected audio standard<br> cx25840 1-0044: Audio muted: no<br> cx25840 1-0044: Audio microcontroller: stopped<br>
cx25840 1-0044: Configured audio standard: automatic detection<br> cx25840 1-0044: Configured audio system: BTSC<br> cx25840 1-0044: Specified audio input: External<br> cx25840 1-0044: Preferred audio mode: stereo<br>
tda9887 1-0043: Data bytes: b=0x14 c=0x30 e=0x44<br> tuner 1-0061: Tuner mode: analog TV<br> tuner 1-0061: Frequency: 55.25 MHz<br> tuner 1-0061: Standard: 0x0000b000<br> wm8775 1-001b: Input: 2<br>
ivtv0: Video Input: Composite 1<br> ivtv0: Audio Input: Line In 1<br> ivtv0: Tuner: TV<br> ivtv0: Stream: MPEG-2 Program Stream<br> ivtv0: VBI Format: Private packet, IVTV format<br> ivtv0: Video: 720x480, 30 fps<br>
ivtv0: Video: MPEG-2, 4x3, Variable Bitrate, 4500000, Peak 6000000<br> ivtv0: Video: GOP Size 15, 2 B-Frames, GOP Closure<br> ivtv0: Audio: 48 kHz, Layer II, 384 kbps, Stereo, No Emphasis, No CRC<br> ivtv0: Spatial Filter: Manual, Luma 1D Horizontal, Chroma 1D Horizontal, 0<br>
ivtv0: Temporal Filter: Manual, 8<br> ivtv0: Median Filter: Off, Luma [0, 255], Chroma [0, 255]<br> ivtv0: Status flags: 0x00200000<br> ivtv0: Stream encoder MPG: status 0x0118, 3% of 4096 KiB (128 buffers) in use<br>
ivtv0: Stream encoder YUV: status 0x0000, 0% of 2048 KiB (64 buffers) in use<br> ivtv0: Stream encoder VBI: status 0x0038, 6% of 1040 KiB (61 buffers) in use<br> ivtv0: Stream encoder PCM: status 0x0000, 0% of 324 KiB (72 buffers) in use<br>
ivtv0: Read MPG/VBI: 12103616/59444 bytes<br> ivtv0: ================== END STATUS CARD #0 ==================</font></pre><br></div>